[단신]Micro-HPLC에 의한 Carbendazim과 Carbaryl의 분석

A micro-high performance liquid chromatography(Micro-HPLC) techniquie with solid phase extraction was reported which detected carbendazim and carbaryl at picogram levels. They were separated on microbore packed C_(18) column(1.0㎜ I. D×150㎜, dr=5㎛) using a 50% methanol mobile phase and detected at UV 220㎚(α=2.94, Rs=4.71), while they were not resolved on analtical HPLC system(α=1.27, Rs=0.76). The detection thresholds of carbendazim and carbaryl were 0.5ng and 0.1ng on Micro-HPLC, therefore Micro-HPLC system was 20~40 told more sensitive than anayltical HPLC system. Sep-Pak C_(18) catridge was found to be efficient in enriching carbendazim and carbaryl from dilute aqueous solution with 97.0% and 97.8% recoveries of them. The Sep-Pak C_(18) catridge followed by the Micro-HPLC had been applied to the quantitative analysis of carbendazim and carbaryl in spiked juices and a commercial drinking water.